Kinematics (NEET Physics): Questions 183 - 187 of 229

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Question number: 183

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A man is walking on a level road at a speed of 3 km/h. Raindrops fall vertically with a speed of 4 km/h. Find the velocity of raindrops with respect to the men.

Choices

Choice (4) Response
a.

4 km/hr

b.

7 km/hr

c.

5 km/hr

d.

3 km/hr

Question number: 184

» Kinematics » Uniform and Non-Uniform Motion

MCQ▾

Question

A boy standing on a weighing machine observes his weight as 100 N. When he suddenly jumps upwards, his friend notices that the reading increased to 300 N. The acceleration by which the boy jumped will be

Choices

Choice (4) Response
a.

3.27 m/s 2

b.

19.6 m/s 2

c.

29.4 m/s 2

d.

32.7 m/s 2

Question number: 185

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

A force produces an acceleration of 5 m/s 2 in a body and same force an acceleration of 15 m/s 2 in another body. The acceleration produced by the same force when applied to the combination of two bodies will be –

Choices

Choice (4) Response
a.

0.667 m/s 2

b.

3.75 m/s 2

c.

20 m/s 2

d.

10 m/s 2

Question number: 186

» Kinematics » Uniformly Accelerated Motion

MCQ▾

Question

A force produces acceleration 1, ½, 1/3, ¼… (All in m/s2), applied separetly to n bodies. If these bodies are combined to form single one, then the acceleration of the system will be, if same force is taken into account.

Choices

Choice (4) Response
a.

2n(n+1)

b.

n22

c.

2n2(n+1)2

d.

n2

Question number: 187

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

In the above example, the height ascended or descended, as the case may be, during that time i. e. 4 sec will be -

Choices

Choice (4) Response
a.

1.744 m

b.

0.1744 m

c.

17.44 m

d. All of the above

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